SEISMOLOGY AND GEOLOGY ›› 1996, Vol. 18 ›› Issue (1): 37-44.

• Brief Report • Previous Articles     Next Articles

QUANTITATIVE RELATIONSHIP BETWEEN SURFACE RUPTURE PARAMETER, EARTHQUAKE MAGNITUDE AND RECURRENCE INTERVAL FOR SURFACERUPTURING-EARTHQUAKES IN WEST CHINA

Ye Wenhua, Xu Xiwei, Wang Liangmou   

  1. Institute of Geology, SSB, Beijing 100029
  • Received:1994-11-30 Revised:1995-06-30 Online:1996-03-06 Published:2009-11-25

中国西部强震的地表破裂规模与震级、复发时间间隔关系的研究

叶文华, 徐锡伟, 汪良谋   

  1. 国家地震局地质研究所, 北京 100029
  • 基金资助:
    国家地震局“八五”攻关项目(850502)

Abstract: Quantitative relationship between length(L)and maximun displacement(D)of strike-slip surface rupture zone, earthquake magnitude(Ms) and recurrence interval(T) for earthquakes in west China is empirically fitted. The result indicates that the earthquake magnitude Ms and recurrence interval T are closely associated with both rupture length L and maximum displacment D.Ms can be estimated from multiplication product LD, and T is closely related to the ratio D/L. Given Ms or LD for an earthuqake,the larger the D/L valus is,the longer the recurrence interval T becomes. Given surface rupture length L for an earthquake with longer recurrence interval T, its Ms or LD is larger. Given maximum displacement D for an earthquake with larger Ms or LD, its recurrence interval is shorter.

Key words: Surface rupture length, Maximum displacement, Magnitude Ms, Earthquake recurrence interval

摘要: 研究了我国西部走滑型地震的地表破裂长度L和位移量D与震级Ms和复发时间间隔T之间的定量关系。结果表明:震级Ms和复发间隔T不仅与L值有关,还同时与D值相关;乘积LD值可用来估算震级Ms,比值D/L与复发间隔T密切相关;对于MsLD值给定的地震,D/L值大(即L值小或D值大)的地震,有较长的复发间隔;当破裂长度L一定时,有较长复发间隔的地震,MsLD值较大;当位移量D相同时,MsLD值较大地震的复发间隔较短。

关键词: 破裂长度, 断层位移, 震级, 地震复发间隔